college Maths Puzzle Numerical Ability

45+45=45 how ? can anyone solve this problem

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i think it should be 45-45=45
then my soln 45 - 45 = 45

987654321 = 45(SUM OF DIGITS)
-123456789 = 45(SUM OF DIGITS)
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864197532 = 45(SUM OF DIGITS)
10 years agoHelpfull: Yes(2) No(1)

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